Steelhead Composites

Golden, CO · Founded 2012 · Privately Held (backing)

Manufacturer of composite overwrapped pressure vessels intended to provide lightweight, high-pressure storage for propulsion, life support, and energy systems in demanding environments. Steelhead Composites is based in Golden, CO and was founded in 2012. It was valued at $10 million at its later-stage round in Nov 2025, the last priced event on record. It has raised $45.8 million across 11 recorded rounds; the latest was a $750,000 debt round in Jun 2026.

PMV mark · valuation
$10.0M
Oct 2026
Priced at
its later-stage round
Nov 2025
Total raised
$45.8M
Last round
Debt
Jun 2026
What is Steelhead Composites worth?
$10.0MPrivateMarketView mark · Oct 2026

Valued at $10.0M at its later-stage round, Nov 2025. Nothing has traded since.

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Valuation timeline

0 priced rounds · 32 daily marks since · Sep 2026 – Oct 2026
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Markrounds hold their value until the next priced eventMark, today
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Steelhead Composites funding history

11 rounds
DateRoundRaisedPost-money
Jun 2026Debt$750K▮
Oct 2025Seed Round$1.9M▮
Aug 2024Early Stage VC$15.0M▮
Jun 2023Seed Round$1.9M▮
Oct 2022Seed Round$1.9M▮
Jun 2022Seed Round$5.0M▮
+ 5 earlier rounds · a free account shows the full history
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Steelhead Composites valuation

Steelhead Composites was valued at $10 million at its later-stage round in Nov 2025. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.

How much has Steelhead Composites raised?

Steelhead Composites has raised $45.8 million across 11 recorded rounds since 2012. The largest was a $750,000 debt round in Jun 2026.

Steelhead Composites has filed 11 Form Ds with the SEC since 2012, most recently in Aug 2024 ($15 million sold to 1 investor).

Institutional holders and vehicles

In the last 12 months, 1 investment vehicle was formed to buy Steelhead Composites shares, reporting $513,400 sold to 71 investors, per SEC Form D filings (most recent Dec 2025).

How Steelhead Composites's valuation is determined

Private company valuations aren’t quoted on an exchange — they’re established in moments: a priced funding round sets a post-money valuation, secondary trades print at a price per share, and SEC-registered funds holding the stock report fair-value marks in their N-PORT filings.

For Steelhead Composites, the most current credible signal sets the number and the older ones confirm it: a live secondary-market price first, then three or more recent prints, then institutional fund marks, and otherwise the last priced round, which never decays. The valuation is the last round’s post-money moved by the price change since that round, so no share count is assumed. Today it is set by its last priced round. Question about this number? Full methodology →

Frequently asked about Steelhead Composites

What is Steelhead Composites worth?
Steelhead Composites is valued at $10.0M as of Oct 2026. Valued at $10.0M at its later-stage round, Nov 2025. Nothing has traded since.
How much has Steelhead Composites raised?
Steelhead Composites has raised $45.8M in total funding across 11 recorded rounds.
When did Steelhead Composites last raise?
Steelhead Composites last raised in Jun 2026 (Debt), raising $750K.